Recent versions of cppcheck give a warning due to the NULL buffer passed to recv() in tcp_sock_consume(). Since this apparently works, I assume it's actually valid, but cppcheck doesn't know that recv() can take a NULL buffer. So, use a suppression to get rid of the error. Also add an unmatchedSuppression suppression since only some cppcheck versions complain about this. Signed-off-by: David Gibson <david(a)gibson.dropbear.id.au> --- tcp.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tcp.c b/tcp.c index b694792..8ec991c 100644 --- a/tcp.c +++ b/tcp.c @@ -2280,6 +2280,7 @@ static int tcp_sock_consume(struct tcp_conn *conn, uint32_t ack_seq) if (SEQ_LE(ack_seq, conn->seq_ack_from_tap)) return 0; + /* cppcheck-suppress [nullPointer, unmatchedSuppression] */ if (recv(conn->sock, NULL, ack_seq - conn->seq_ack_from_tap, MSG_DONTWAIT | MSG_TRUNC) < 0) return -errno; -- 2.37.3